10 Sheet 28 Inchx12 Inch Electrostatic Filter Cotton HEPA Filtering Net for Philips/Xiaomi Mi Air Purifier 1. Innovative technology: the use of electrostatic filter materials can effectively isolate particulate pollutants greater than 0.2m in the air, and the dust filtration efficiency of 0.5m can reach more than 95%._x000D_ 2. Extend the service life of the filter: effectively filter dust, pollen, bacteria and other pollutants in the air, protect the filters to reduce pollution. It can effectively extend the life of the purifier filter by more than double, thereby saving replacement costs._x000D_ 3. Improve service life: The pre-filter used in the filters of the finished product can effectively increase the service life of the filter, so that your filter can truly reach the service life specified by the manufacturing trademark._x000D_ 4. Low wind resistance design: When the wind speed is 0.5m / s, the wind resistance is as low as 3.5pa, which does not affect the wind speed._x000D_ 5. Compatible: This filter is compatible with Xiaomi Mi Air Purifier 1/2 / Plus, or cut it to a size suitable for air conditioners, windows, electric fans._x000D_ 1. Filter soot, PM2.5, etc._x000D_ 2. Used in conjunction with the HEPA filter, placed on the front of the HEPA filter, can effectively extend the life of the HEPA filter._x000D_ Soft, non-toxic, odorless, washable 1 or 2 times, remember not to rub hard._x000D_ Range of use: Modified air purifiers for household air conditioners, fans, air circulation fans, air conditioners, exhaust fans, fans, etc._x000D_ size:Can be cut into at least 2 pieces of your purifier filter, one piece can be used for about 1 month, and can be tailored as needed (one can be divided into two for an air conditioner hook.) Two areas can be used._x000D_ Colour:White_x000D_ Material:fiber_x000D_ Size:30x72cm_x000D_ _x000D_ Package Contents:_x000D_ 10* Electrostatic Filter Cotton_x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_